/* Typography & Utilities */

h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-main);
}

.highlight {
    color: var(--text-main);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: var(--text-main);
    opacity: 0.1;
    z-index: -1;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.line {
    height: 3px;
    width: 60px;
    background-color: var(--primary-color);
    margin: 0 auto;
}

/* Buttons */

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-color);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--text-main);
    background-color: var(--card-bg);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-main);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--bg-color);
}

.btn-sm {
    padding: 0.5rem 1.2rem;
    font-size: 0.9rem;
}

/* SVG Icons */

.icon {
    width: 1em;
    height: 1em;
    display: inline-block;
    vertical-align: -0.125em;
}

.icon-lg {
    width: 1.5em;
    height: 1.5em;
}

.icon-3x {
    width: 3em;
    height: 3em;
}